Demountable-rim retainer.



C. L. ADAIR. DEMOUNT ABLE RIM RETAINER.

' APPLICATION FILED JUNE 29,1916- 1,208,439.

Pa tnted Dec. 12,1916.

2 SH EETS-SHEET 1 Patented Dec. 12,1916.

2 SHEETS-SHEET 2 C. L. ADAIR, DEMOUNTABLE RIM RETAINER. APPLICATIONFILED JUNE 29. l9l6- UNITED STATES PATENT OFFICE.

CLINTON LAVERNE ADAIR, OF BENTON, PENNSYLVANIA. ASS IGNOR OF ONE-HALF TOKARL ZARR HESS, OF BENTON, PENNSYLVANIA.

DEMOUNTABLE-RIM RETAINER.

Specification of Letters Patent.

Patented Dec. 12, 1916.

Application filed June 29, 1916. Serial No. 106,630.

To all 1151mm it may come a.

Be. it known that I. (LiN'rox Lavnnnn AJMIR, a citizen of the l'nitedStates, and a resident of Benton. in the county of (ohmibin and State ofPem1sylvania, have invented a new and lmproved Demountable- RimRetainer, of which the following is a full, clear, and exact.description.

This invention relates to resilient tires and wheels and has particularreference to demountable rims for pnelmnitic or other replaceable tires.

Among the objects of the invention is to provide a quick and easy meansfor manipulating demount'able rims or the like.

More definitely stated. one object is to provide in connection with thedemountable rim. a hook-like retainer with means for quickly applyingthe same to position and tightening for locking the, rim in place.

With the foregoing and other objects in view the invention consists inthe arrangement and combination of parts hereinafter described andclaimed. and while the invention is not restricted to the exact detailsof construction disclosed or claimed herein, still for the purpose ofillustrating a practical embodiment thereof reference is had to theaccompanying drawings, in which like reference characters designate thesameparts in the several views, and in which Figure l is a sideelevation of a wheel showing my improvement applied thereto; Fig. 2 isan enlarged detail view of the locking devices partly in section; Fig. 3is a view of the coupled ends of the 'hoop partly in section. andshowing the position prior to tightening: Fig. 4 is a horizontalsectional detail on the line -'lt of Fig. 1, indicating the position ofthe clamp when the hoop is tightened; Fig. 5 is a transverse sectionaldetail on the line 55 of Fig. 2.; Fig. (3 is a transverse sectionaldetail on the line t')-t$ of Fig. 7; Fig. 7 is a detail in elevation ofa mmlification of the invention applied to that type of rim shown inFig. (3; and Fig. 8 is a transverse sectional detail of the telly andrimportions of a modified form of the invention.

Referring now more particularly to the drawings, I show in the principalfigures a standard form of wheel comprising a felly it), a stationaryrim I1 and a. demountable rim 12 carrying any approved form of tireindicated at 13, The stationary rim 11 is tion :29 of the shaft fits.

held from displacement in one direction by means of a series of lugs lclamped to the telly by means of transverse bolts 15. Any suitablenumber of these bolts 15 or their equivalent may be employed, and uponthe outer end of each of them, or on the side of the felly opposite thelug 1% is secured a special form of lug 16 having its outer end beveledas indicated at 17. The beveling 0r l'lare of the outer ends of theselugs is outward and the point of each lug projects radially far enoughbeyond the outer surface of the telly to form a seat for my specialbinding hoop 18. which bears at its one side against the bevels 17 ofthe several lugs 16. and at. its-other side against the demountable rim1?.

.\s shown in the detail views, one end of the hoop is provided with aclosed ring or eye 19 of circular form and the other end of the hoop isthreaded, as indicated at 20.

At '31, I show a socket member having an internally threaded thimble 2at. one end adjustably onnected to the tl1'-:eaded end20 of the hoop. Atits other end, the socket member is bifurcated having two parallel wingsl3 and :24 having ooaxially arranged holes 23 and 24 respectively. Theseholes are both circular, but the former is larger than the latter.

At 25. is shown a short shaft having at one end a head 26, adjacentwhich is a. large circular bearing portion 27 fitted for rotation'in thehole 23. Near the, other end the. shaft is provided with a second smoothbearing portion 28 rotatably fitted in the hole 24. Between the, bearingportion. 27 and 28 is a polygonal portion 29 formed as reduced from the.bearing portion 27, whereby this portion of the shaft is projectablethrough the bearing hole 223. The length of the portion 29 is greaterthan the. diameter of the metal of the hoop or thickness of the ring 19.At the end of the shaft opposite the head 26 is formed a polygonalportion 30 reduced from the portion '28 for projection through the hole24. This por tion 30 is adapted for the application of a wrench of anysuitable construction for turning the shaft.

31 indicates a cam wheel having a. circular periphery and fittedrotatably within the ring it). This wheel 31 has an eccentric opening 31into which the polygonal por- The portion 29,

however, of the shaft is longer than the thickness of the wheel for theaccommodation of a stop log 32 fitted rigidly upon said projecting endof the portion 29. The wheel and lug 32 consequently are both rotatablewith the shaft between the two plates 23 and 24.- of the socket member.The length of the stop lug 32 is such that its free end is adapted tostrike against the crotch portion of the socket member 21.

The operation of the device thus far described is substantially asfollows: With the folly equipped the rim 12 is slipped into placeagainst the flange of the rim 11 over the lugs 16 and then the hoop,with the coupling thereof in the position shown in Fig. 3, will beslipped into place over the lugs 16 and against the adjacent side of therim 12, as shown in Fig. 5. The length of the hoop will previously havebeen adjusted at the connection at 20 and 22 according to the size ofthe wheel. The tool (not shown) then being applied to the polygonal end30 of the shaft 25, the shaft, cam wheel, and stop lug will be swungwithin the ring 19 until the stop lug strikes against the crotch portionof the socket piece. .The longer radius of the cam wheel will by thistime have passed to or slightly beyond the dead center and accordinglythe device will be self-locking, as shown in Figs. 1, 2, and 4. Theamount of eccentricity of the cam wheel will be sufficient to firmlytighten-the hoop in the' position indicated, preventing displacementthereof from the wheel and the hoop will hold the other parts of thewheel in place.

In Figs. 6 and 7, I show a modified form of rim structure, the samecomprising a stationary rim 11 secured in any suitable manner to thetelly 10. The rim 11 is provided with a side edge formed with a groove33 over which the demountable rim is adapted to be passed so as to abutagainst the upstanding flange 3 t on the other side of the wheel. Toadapt this form-of fixed rim for the in'iproved retainer, a portion ofthe projecting or grooved portion of the rim is cut away close to theedge of the felly 10 to accommodate the coupling portions of the hoop.In order to support the ends the with the bolts 15 and lugs 16,-

grooved portion of the rim thus exposed, a pair of lugs 16 are bolted tothe folly by means of bolts 15. The hoop lies in the groove 33 entirelyaround the wheel except directly between the lugs 16, and when so lyingin the groove, as shown in Fig. 6, the detachable rim will be positivelylocked in place. The operation of this form of device is practically thesame as that above described in connection with the main figures.

As shown in Fig. 8, the pivot bolt 25 may be journaled permanently in asleeve l0 fitted in the telly 10 and reversed so that the end 30 towhich the wrench or the tool will be applied, will be on the side of thewheel next to the vehicle. By this arrangement the head 26 and adjacentparts of the device will project on the outside of the wheel to theleast extent. The bolt 25 may be locked in place by a washer 35 and key36.

I claim:

1. The combination with a felly, a rim fixed thereto and a demountablerim cooperating with the fixed rim, of retaining means for theden'iountable rim comprising a hoop having a ring at one end, abifurcated socket piece at the other end, the ring being located in thebifurcated portion of the socket piece, a crank shaft journaled in thesocket piece and a cam wheel secured to the crank shaft and fittedrotatably in the ring for tightening the hoop, and means secured to theside of the folly to hold the hoop in place against the demountable rim.

2. The combination with a telly and a rim secured thereto, of ademountable rim retainer cooperating with said folly and rim andcomprising a hoop having at one end a circular ring and at the other enda bifurcated socket piece adjustably connected thereto, Said ring beingfitted into the forked portion of the socket piece, a shaft journaled inthe socket piece and having a polygonal portion between its ends, a camwheel secured upon the polygonal portion of the shaft and fitted forrotation within the ring a foresaid, means to rotate the shaft and camwheel and a stop member secured to the shaft to limit its extent ofrotation.

CLINTON LAVERNE A'DAIR.

